Pressure gauge for paper-mill jordans



Nov. 29, 1927. 1,650,938

w. P. FEENEY PRESSURE GAUGE FOR PAPER MILL JORDANS Filed Feb. 1926 hm mun ATTORNEY LIAM E. FEENEY, OF CHEYBOYGAN, MICHIGAN.

TRESSUJRIE GAUGE FOE -IPAPER-MILL JORDANS.

Application filed February 25, 1926. Serial No. $0,458.

The present invention relates generally to paper making machinery and more particularly to a pressure control for paper mill .jordans and the like.

In preparing pulp from rags, wood or other raw material for the manufacture of paper it is customary to pass it through some form of beating engine or refiner which reduces the fibers to suitable lengths and m beats them into a stiff pulp adapted to carry the water necessary to felt the fibers together in subsequent operations. One of the forms of refiners commonly used for this purpose is generally known as a jordan. Such a refiner may comprise a conical shell having a conical member rotatably mounted therein with suitable cutting bars or other fillings for treating the pulp which enters at one end and leaves at the other. The present an invention is particularly applicable to mechanisms of this general type and contemplates a compact, inexpensive and readily accessible pressure control for subjecting the inflowing pulp to a substantial pressure to assure the elimination of air pockets, the complete. filling of all spaces therein, and uniform flow of pulp through the jordan. The application of the present invention not only increases the production and efliciency of the an machine but also decreases the wear on the fillings by eliminating irregular operations. An object of the invention is to provide an inexpensive pressure control for paper mill jordans and the like, which will assure a uniform and continuous flow of pulp through the machine at a substantially constant pressure, irrespective of the consistency of the pulp; to render the control capable of starting and shutting down the jordan so that it will be unnecessary. to interfere with the operation of the pumping mechanism; and to provide a readily accessible control device which is applicable to existing machines.

Otherand further objects of the invention will be obvious upon an understanding of the illustrated embodiment about to be described or will be indicated in the appended claims, and many advantages other than those herein specifically referred to will occur to one skilled in the art upon employment of the/invention in praptice.

A preferred embodiment of the invention has been chosen for the purpose of illustration and description and is shown in the accompanying drawings, wherein Fig. 1 is a side elevational view of a jordan with a control device, shown in section along line 11 of Fig. 2, applied thereto; and

Fig. 2 is a top plan view of the control device.

Referring more particularly to Fig. lot.

the drawings there is shown a jordan having a conical shell 11 closed by suitable heads 12 and 14 on its respective ends and having an intake 15 at the small end thereof and an outlet 16 at the large end thereof. It will be understood that pulp is pumped through the intake pipe by any suitable means not shown in the drawings, into one end of the jordan and by rotation of the shaft 18 the pulp is beaten or refined until it is of the proper consistency and then dolivered through pipe 16 for subsequent operations with which the present invention is not concerned.

The preferred form of pressure control for the jordan may be attached to the intake 15 by means of the T-joint 19 with a pipe 20 extending into a reservoir 21 with its open end cut to receive a cap 24. The cap preferably comprises a flat portion 25 adapted to fit on the end of the pipe 20 with a narrow riu'i 26 at right angles thereto for engaging the pipe and holding the cap in position.

A lever 28 is bolted to the center of the Hat portion of the cap 2d at one end and has its other end bolted to a lever 29 by means of the bolts 30 which hold it rigidly in position. The lever 29 has a semi-circular member 27 cast integu'al with one end thereof with the free end of the member 27 mounted upon a shaft 32 supported bythe upright members 33 bolted to the sides of thereservoir 21. The free end of the lever extends outwardly in a substantially horizontal position, and is notched at 34 to receive 'a hooked support 35 having its lower portion adapted to support a series of weights 36 which apply 10o the desired pressure to the cap 24. The member 35 may have a suitable scale graduated in pounds pressure per square inch, so that the operator may readily ascertain the number of weights to add for subjecting the 105 pulp entering the jordan to any given pressure. A pair of handles 37, extending horizontally from oppositesides of the member 35, are provided to facilitate handling and placing the hooked member in position on 1110 the lever 29. If desired, the lever 22 may he raised about the shaft 32, and the pivoted hinge or latch 39 may be raised to its dotdash position to remove the cap 24 and hold it in ineffective position, so that the pulp, instead of entering the jordan, will pass through pipe 20 into the reservoir 21 and be conducted by pipe 41 back to its original source. In this manner the jordan may be shut down without interfering with the pumping mechanism.

A suitable cover for closin the reservoir 21 may be provided by boIting L-shaped channel members 42 to the inner side wall of the reservoir preferably at a point below the supporting members 33 to accommodate a metallic member 44 attached to the laterally projecting flange of the L-shaped member and extending substantially halfway across the reservoir. may be hinged to the member 44 by means of hinges 47 to permit ready access to the reservoir for any purpose. Suitable handles 48 may be provided for raising the hinged cover portions with locking members 49 on the lower ends thereof, adapted to be rotated into engagement with one of the L-shaped members 42. By having a pair of doors, one on each side of the lever 28, the reservoir may be opened and closed without disturbing the pressure applying mechanism.

To further control the flow of pulp through the jordan, there is provided in the outlet pipe 16, a check valve 50 which may be opened to permit as much pulp to flow as desired, so that the jordan may be operated efiectively and efficiently. This valve may also be utilized to limit the flow so that a desired pressure may be obtained with a pumping mechanism having a limited capacity.

In the operation of the device, a suitable pump or other mechanism may be utilized for supplying pulp to the jordan through the intake pipe 15 at a pressure slightly in excess of the desired pressure, which will occasion a slight openin of the cap 24 on the ipe 20 and the disc arge of a portion of t e pul into the reservoir 21 which is conducted back to the pulp supply for the pump. The reservoir is located adjacent the jordan so that the operator may control the pressure in the intake without access to the pumping mechanism; and in fact, may shut down the jordan by raising the lever 29 to its dot-dash position and supporting it in that position by means of the latch 39. This relieves the operator of the necessity of going from one room to another to manipulate the various mechanism to secure proper operation. All adjustments may be made in the room where the jordan is located. In starting and stopping the jordan, it is not necessary to change the position of the check valve 50 and therefore the jordan may be stopped by locking the lever 29 in its upper position and may be started later under its A pair of doors 45 and 46 exact original operating conditions by merely removing the latch 39 and lowering the lever 29.

It will be seen that the invention above described may be applied to any type of jordan or refiner for pulp, that the control device is located where it is readily accessible to the operator, and the pulp may be subjected to any desired pressure without interfering with the pumping mechanism. This pressure may be readily varied for best operating results with pulps of different characteristics. The parts of the device may be readily manufactured from easily obtainable material and the device, when assembled, is sufiiciently rugged to withstand the rough usage to which it is likely to be subjected.

As various changes may be made in the above embodiment without departing from the spirit of the invention, all matter herein set forth is to be interpreted as illustrative and not in a limiting sense. v

Having thus described my invention, I claim 1. In a pressure control for paper mill jordans and the like, the combination of a relief valve connected to the intake of the jordan adapted to discharge a portion of the pulp, and devices for preventing the operation of said relief valve until a pnedetermined pressure has been reached.

2. In a pressure control for paper mill jordans and the like, the combination of a relief valve connected to the intake of the jordan adapted to discharge a portion of the pulp, devices for preventing the operation of said relief valve until a predetermined pressure has been reached, and means for conducting the discharge pulp from the relief valve to a suitable reservoir.

3. In a pressure control for paper mill jordans and the like, the combination of a relief valve operatively connected to the intake of the jordan to control the pressure therein by discharging pulp therefrom and a check valve at the outlet end of the jordan for controlling the flow of pulp therethrough.

4. 111 a pressure control for paper mill jordans and the like, the combination of an intake leading to the jordan, a conduit operatively connected with said intake, and means associated with said conduit for discharging pulp when a predetermined pressure has been reached.

5. In a pressure control for paper mill jordans and the like, the combination of an intake leading to the jordan, a conduit operatively connected with said intake, mechanism associated with said conduit for al1owing pulp to escape when a predetermined pressure has been reached, and a second conduit for returning said pulp to its source.

6. In a pressure control for paper mill ordansand the like, the combination of an lib Ell

aeeaeae int e leading to the jordan, a conduit operatively connected with said intake, a cap ada ted to close said conduit, and means for app ying a predetermined pressure to said cap.

7. In a pressure control for paper mill jordans and the like, the combination of an intake leading to the jordan, a conduit operatively connected with said intake, a cap adapted to close said conduit, and a pivoted lever adapted to hold said cap in position, said lever being adapted to receive weights to apply a predetermined pressure to said cap. v

8. In a pressure control for paper mill jordans and the like, the combination of a reservoir, a conduit connecting said reservoir with the intake side of the jordan means within said reservoir for closing said conduit, and devices for applying apredetermined pressure to said means to control the pressure in said jordan.

9'. In a pressure control for paper mill jordans andthe like, the combination of a reservoir, a conduit connecting said reservoir with the intake side of, the jord'an, a cap within said reservoir for closing said conduit, and a lever adapted to support weights for applying a predetermined pressure to.

te said cap to control the pressure in said jordan.

10. Ina pressure control for paper jordans and the like, the combination of a reservoir, a conduit connecting said reservoir with the intake side of the jordan, means in said reservoir for closing said conduit, devices externally of said reservoir for applying a predetermined pressure to said means to control the pressure in said jordan, and means for regulating the flow of pulp through said jordan.

11. In a control for paper mill jordans and the like, the combination of a reservoir adjacent the jordan and at substantially the same level, a conduit connecting the said reservoir with the intake side of said jordan,

means in said reservoir for closing said conduit, devices externally of said reservoir for applying a predetermined pressure to said means to control the ressure in said jordan, and mechanism for holding said means in \inefiective position to permit unrestricted flow of pulp into said reservoir, whereby the flow of pulp to said'jordan may be shut ofi without interfering with the pumping mechamsms.

12. The combination of a paper mill j ordan' with devices on the intake side thereof for controlling the pressure of the pulp supplied thereto, and means on the outlet side thereof for controlling the flow of pulp therethrough. 

